JPS6058858A - Energization head - Google Patents

Abstract

PURPOSE:To achieve a recording with a high resolution by a method wherein a fabric woven using conductive fibers for the weft or warp are glued on a reinforcement and the tip of each conductive fiber is pressed against a recording paper. CONSTITUTION:A fabric woven using conductive fibers 38 and non-conductive fibers 40 is glued on a reinforcement 36 through an adhesive layer 37 to form an energization head 35, whose end face is pressed against an aluminum-deposited layer 32 on the surface of a discharge breaking paper 31. While the head 35 is running, an electrical signal is applied to the recording paper 31 and the conductive fibers 38 to break the deposited layer 32 and exposes a black layer 33 to visualizes a pattern according to the electrical signal.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a writing head for a recording device that records electrical signals in the form of visible images.Conventional structure and problems thereofIn recent years, office automation Accordingly, various terminals are required. Among these, recording devices that convert electrical signals into visible images, so-called printers, are in great demand, but there are few that are satisfactory in terms of performance. Among various types of recording devices, discharge breakdown recording devices are commonly used because they are superior in terms of high speed, record preservation, and economic efficiency.However, the print quality of this recording device is not very good. In other words, the resolution is not very good, currently 6 to 6 dots and 1. /MN is common. Despite the inherent ability of discharge rupture recording devices to achieve high resolution, their performance has been kept low due to the difficulty of manufacturing write heads.

The discharge breakdown recording device is a discharge breakdown recording paper consisting of a vapor deposited aluminum layer, a black layer, and a base paper layer.The vapor deposited aluminum layer of the discharge breakdown recording paper is grounded, and an electrode to which a voltage is applied is brought into contact with this vapor deposited aluminum layer, and the contact portion is heated or discharge breakdown occurs. The vapor-deposited aluminum is removed and the underlying black layer is exposed for printing. Therefore, in order to write well, use a wire (
A write electrode is made to expose the electrode needle (11) and ensure contact. 12 is a fixed part, and +3 is a lead. If the electrode needles are not exposed (protruding) as shown in FIG. 1(b), the circumference of the electrode needles 14 will be destroyed, dust generated during recording will accumulate there, and the insulation between the electrode needles will be damaged.
Unable to write well. Therefore, it was necessary to make the electrode needle protrude and to make it strong, so it was necessary to use something thick and hard. Therefore, it was not possible to increase the resolution.

Almost the same problem exists in other recording devices, such as electric thermal recording and electrolytic recording.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a write head that enables high-resolution recording and is inexpensive.

Structure of the Invention In the current-carrying head of the present invention, an electrode body made of a cloth-like material in which one of the weft and warp threads is made of conductive fibers and the other is made of non-conductive fibers is adhesively fixed to a reinforcing body, and each of the conductive fibers is woven. The head is configured so that the leading end contacts the recording paper to perform recording, thereby making it possible to perform high-resolution recording and to realize an inexpensive and highly reliable current-carrying head.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view of a cloth-like body used in the present invention. In Fig. 2, 21 is a conductive fiber such as a metal wire;
2 is a cloth-like body woven from non-conductive fibers such as polyester, which can be easily obtained using a normal loom or spinning machine. The above conductive fibers include stainless steel and copper wire.

Conductive fibers such as carbon fiber, coated wires, etc. are used. Non-conductive fibers include synthetic fibers such as nylon, polyester, and acrylic.

Natural fibers are used.

The writing method will be explained in detail using an embodiment of the present invention. FIG. 3(a) is a sectional view of the cloth-like body bonded and fixed to the reinforcing body 36. 37 is an adhesive layer, 38 is a conductive fiber, and 40 is a non-conductive fiber.

For the reinforcing body 36, it is preferable to select a heat-resistant material that can be used in an atmosphere of 100°C or higher, and more preferably 150°C.
℃ or higher is good. An adhesive layer is applied to the reinforcing body, and the cloth-like electrode is formed into a laminate by hot pressing. By adhesively fixing the cloth-like body in this manner, reliability is increased and handling becomes easy. It also has the great effect of smoothing out the bends at the ends of the conductive fibers and making it possible to obtain high-quality printing. It is desirable that the adhesive layer 37 be made of a material with high melt viscosity, that is, a material with poor fluidity, so that the entire conductive fiber is not covered with the adhesive layer. This is to ensure more reliable contact with the recording paper by exposing the conductive fibers of the pick.

The thus obtained laminate is cut in a direction perpendicular to the conductive fibers to form a current-carrying head for writing.

30 μm stainless steel is used as conductive fiber, 20 μm polyester is used as non-conductive fiber, and line pitch is 70 μm.
A laminate was prepared by weaving the cloth-like body 9, using a 126 μm polyimide film as a support and a 50 μm acrylic adhesive sheet as an adhesive layer, and performing heat pressing at 160° C. and a pressure of 151 j/cj to produce a conductive material. The fibers were cut in the direction perpendicular to the fibers to obtain 10 energized heads for writing with a resolution of 7Nl1g.

FIG. 3(B) is a perspective view of the writing portion. In FIG. 3, numeral 31 is called a discharge destruction recording paper, which is well known. This is the aluminum vapor deposited layer 32 and the black layer 33.
, a base paper 34.

36 is a current-carrying head for writing according to the present invention, 36 is a reinforcing body, 37 is an adhesive layer, and 38 is a conductive fiber. The end face of the energizing head 36 is pressed against the surface (aluminum vapor deposited layer 32) of the discharge breaker paper 31 and moves in the direction of the arrow. At the same time (during running), an electric signal is applied (energized) from the electric signal source to the discharge breakdown recording paper 31 and the conductive fibers 38. This energization destroys the sialuminium-deposited layer 32, and the black layer 33
is exposed, and a pattern corresponding to the electrical signal is visualized.

In FIG. 3, an electrode signal is applied to only one of the plurality of stripes, but in reality, each stripe is applied with its own electric signal to obtain a desired pattern. In Figure 3 (■), non-conductive fibers are omitted.

The print quality obtained in this example had a resolution of 10 lines/double, and the continuous writing characteristics were also good.

The characteristics of the current-carrying head of this embodiment are as follows: (1) By selecting the diameter and opening of the conductive fibers, a high-resolution current-carrying head can be easily manufactured.

(b) A highly precise line pitch can be created using conventional textile technology, and by adhesively fixing it to the reinforcing body, a more reliable current-carrying head can be obtained. It is also easy to handle.

(3) It is possible to provide a current-carrying head that is significantly cheaper than a current-carrying head obtained by conventional etching.

(4) The life of the current-carrying head can be dramatically extended by using a stronger metal wire such as stainless steel than copper, which is easier to process.

This feature is a feature that cannot be obtained with the conventional electrodes described above.

Next, other embodiments of the present invention will be described. FIG. 4 is a sectional view of a writing portion of another embodiment of the present invention. Fourth
In the figure, 41 is a discharge destruction recording paper. The details of the cross section are the same as in FIG.

The current-carrying head 42 includes conductive fibers 43, an adhesive layer 44, a reinforcing body 46, and an elastic layer 46. This elastic layer 46 has effects such as adjusting the pressing pressure against the discharge breakdown recording paper 41, strengthening the stiffness of the rad 42 when energized, increasing fatigue from bending, and dissipating the heat generated when the aluminum vapor deposited layer breaks. be. To achieve this effect,
The material of the elastic layer 46 is preferably a metal such as phosphor bronze, stainless steel, or steel.

FIG. 6 is a sectional view of another embodiment of the invention.

In FIG. 5, reference numeral 51 denotes discharge destruction recording paper.

The details of the cross section are the same as in FIG. The conductor 52 has a structure in which a laminate of conductive fibers 64, an adhesive layer 66, and a reinforcing body 66 is embedded in an insulating material 53. This results in
It is effective in reinforcing the entire current-carrying head, preventing foreign matter from adhering to the conductive fibers due to discharge breakdown, improving continuous writing performance, and maintaining print quality.

FIG. 6 is a sectional view of the writing portion of the embodiment of the present invention. In FIG. 6, reference numeral 61 denotes discharge destruction paper, and the details of the cross section are the same as in FIG. 3. The current-carrying head 72 is made of conductive fibers 69,
The adhesive layer 64 and the reinforcing body 66 are laminated in two layers, and by arranging the conductive fibers in a bird's-eye pattern, a current-carrying head with even higher resolution can be obtained. Using 100 μm tungsten wire, fabric-like electrode bodies of 6 wires/silk were prepared, and using epoxy resin as an adhesive layer and polyether sulfone with a thickness of 2 mm as a reinforcing material, the fabric-shaped electrode bodies and the reinforcement were bonded together. The body was crimped and fixed using a heat press, conductive fibers were further arranged in a bird's-eye shape, two layers were laminated, and the body was crimped and fixed using a heat press to obtain a two-layer laminated current-carrying head. . The obtained current-carrying head had a high image resolution of 10 7111M and had excellent writing characteristics.

In the above embodiment, the recording method was discharge destruction recording, but the current-carrying head of the present invention may be any recording method that utilizes current. For example, energization thermal recording, electrolytic recording 2 energization transfer recording can be used.

Effects of the Invention As is clear from the above explanation, the present invention involves bonding and fixing a cloth-like body consisting of conductive fibers in at least one of the weft and warp threads and non-conductive fibers in the other to a reinforcing body. Each tip is configured to be in contact with the recording paper, and a high-resolution current-carrying head can be supplied reliably and at low cost. Further, by providing the support with an elastic body, more reliable printing can be obtained, and by embedding the support with an insulating material, a long-life current-carrying head can be obtained. Furthermore, by stacking them in a bird's-eye shape, a high-resolution current-carrying head can be obtained.

[Brief explanation of the drawing]

Figures 1 (a) and (b) are left-over views of a conventional energizing head, Figure 2 is a perspective view of a cloth-like body used in the energizing head of the present invention, and Figure 8 (,) is a diagram of the present invention. FIG. 3 is a cross-sectional view of a current-carrying head according to one embodiment, and FIG. 3 is a perspective view of a writing part using the same head, and FIGS. FIG. 21.3B, 43, 54.63... Conductive fiber, 22.40... Non-conductive fiber, 37, 44
, 56°64...adhesive layer, 36 + 46.5
6 + 65...Reinforcement body, 68...Insulating layer, 31.41.51.61...Discharge breakdown recording paper. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 5
Figure 52 6th section z

Claims (6)

[Claims] (1) An electrode body made of a cloth-like material in which one of the weft and warp threads is made of conductive fibers and the other is made of non-conductive fibers is adhesively fixed to a reinforcing body, and the tips of each of the conductive fibers are in contact with the recording paper. An energizing head configured to do so. (2) The energizing head 0 according to claim 1, characterized in that an elastic layer is provided on the reinforcing body side. (3) The energizing head according to claim 1, characterized in that it is embedded in an electrical insulator. (4) The energizing head according to claim 1, wherein the reinforcing body is made of a heat-resistant material that can be used in an atmosphere of 100° C. or higher. (5) An electrode body consisting of a cloth-like material in which one of the weft and warp threads is made of conductive fibers and the other is made of non-conductive fibers is adhesively fixed to a reinforcing body, and multiple layers are laminated, and each of the laminated conductive A current-carrying head whose fiber tips come into contact with the recording paper. (6) The current-carrying head according to claim 6, wherein the conductive fibers are arranged in a bird's-eye shape.